# Meta Unveils Closed Muse Spark Model, First From Wang's Team - slug: meta-unveils-closed-muse-spark-model-first-from-wangs-team - date: 2026-04-08 - category: Artificial Intelligence The feature Meta AI chief Alexandr Wang is proudest of is not available yet. Muse Spark, the $135 billion company’s first closed model, trails on coding benchmarks — the same day it abandoned the open-source Llama strategy that developers built on. ---